Script that splits the txout of an address into smaller pieces

scripts/lite/split-txouts.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+# This script iterates through the txouts of an address and splits each of them into two smaller txouts
+#
+# The script takes one argument, which is the maximum number of txouts to split.
+
+set -eo pipefail
+
+export WORK="${WORK:-example/work}"
+export BASE="${BASE:-.}"
+export CARDANO_CLI="${CARDANO_CLI:-cardano-cli}"
+export CARDANO_NODE_SOCKET_PATH="${CARDANO_NODE_SOCKET_PATH:-example/node-bft1/node.sock}"
+export TESTNET_MAGIC="${TESTNET_MAGIC:-42}"
+export UTXO_VKEY="${UTXO_VKEY:-example/shelley/utxo-keys/utxo1.vkey}"
+export UTXO_SKEY="${UTXO_SKEY:-example/shelley/utxo-keys/utxo1.skey}"
+export RESULT_FILE_TARGET="${RESULT_FILE:-$WORK/target.out}"
+export RESULT_FILE_CHANGE="${RESULT_FILE:-$WORK/change.out}"
+
+echo "Socket path: $CARDANO_NODE_SOCKET_PATH"
+echo "Socket path: $(pwd)"
+
+count="${1:-1000000}"
+
+mkdir -p "$WORK"
+
+utxoaddr=$($CARDANO_CLI address build --testnet-magic "$TESTNET_MAGIC" --payment-verification-key-file "$UTXO_VKEY")
+
+echo "Built new address: utxoaddr=$utxoaddr"
+
+$CARDANO_CLI query utxo --address "$utxoaddr" --cardano-mode --testnet-magic "$TESTNET_MAGIC" --out-file $WORK/utxo-1.json
+
+echo "Queried UTxO for address: utxoaddr=$utxoaddr"
+
+txins="$(jq -r ". | to_entries | sort_by(.value.value.lovelace) | reverse | map(.key)[0:$count][]" $WORK/utxo-1.json)"
+
+for txin in $txins; do
+  lovelaceattxin=$(jq -r ".[\"$txin\"].value.lovelace" $WORK/utxo-1.json)
+  lovelaceattxindiv2=$(expr $lovelaceattxin / 2)
+
+  targetaddr=$utxoaddr
+
+  $CARDANO_CLI transaction build \
+    --alonzo-era \
+    --cardano-mode \
+    --testnet-magic "$TESTNET_MAGIC" \
+    --change-address "$utxoaddr" \
+    --tx-in $txin \
+    --tx-out "$targetaddr+$lovelaceattxindiv2" \
+    --out-file $WORK/build.body
+
+  $CARDANO_CLI transaction sign \
+    --tx-body-file $WORK/build.body \
+    --testnet-magic "$TESTNET_MAGIC" \
+    --signing-key-file $UTXO_SKEY \
+    --out-file $WORK/build.tx
+
+  # SUBMIT
+  $CARDANO_CLI transaction submit --tx-file $WORK/build.tx --testnet-magic "$TESTNET_MAGIC"
+done
+
+echo "Submitted $(echo "$txins" | wc -w) transactions"